Material building unit



Apr. 17,1923. 1,452,432 V. J. MILLER MATERIAL BUILDING UNIT Filed April5 1921 Patented Apr. 17, 1923.

UNITED STA VERNON J. MILLER, 01 ORANGE, NEW JERSEY.

MATERIAL BUILDING UNIT.

Application filed April 5, 1921. Serial No. 458,681.

1 '0 (17 I whom it may-concern v Be it known that I, VERNON J MILLER, acitizen of the United States, residing at East Orange, in the county ofEssex and State of New Jersey, have invented certain new and usefulImprovements in Material Building Units; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to building materials, and has for an objecttoprovide an article of the general shape and form of a board for variousand general uses, and comprising an impervious face of comparativelythin material backed up and reinforcedby a backing of comparativelycheap materia A further object of the invention is to provide an articlefor general uses and purposes,

having a face plate of ornamental or attractive design, comparativelythin, backed up by a reinforced backing of cheaper :but stress-resistingmaterial.

With these and other objects in view, the invention comprises certainnovel features, elements, units, parts, combinatlons and arrangement's,as will be hereinafter more fully described and claimed.

In the drawings:

Figure 1 is a fragmentary view vice seen in rear elevation.

Figure 2 is a transverse sectional view taken on line 2-2 of Figure 1.

Figu

of the dere 3 is a rear elevatlon of a slightly different modificationof the invention.

- Figure 4 is a transverse sectional view taken on line 44 of Figure 3.

Figure 5 is a view in rear elevation of the 4 impervious plate, showingone type of formation.

Figure 6 is a view in impervious face plate, type of formation.

Figure 7 is a transverse sectional view taken on line 7--7 of Figures 5and 6, and showin means of attaching to the rein.- forced hacking.

Figure 8 is a through means of providing the ends with interlockingextremities.

igure 9 is a transverse sectional view,

showing means for interlocking the units along the longitudinal edgeswhen the derear elevation of the showing a different longitudinalsectional view one of the devices, showing one 'vice is used,

for instance, for facing a building, and in substitutes for clap boards.

-1ke characters of reference indicate the correspondlng parts throughoutthe several views.

The present invention, sense, comprises an impervious whlch may or mayin its broadest face plate, not be of ornamental or attractive design,and may be of such material as glass, marble, tile, terra cotta, stoneor the like.

This face plate is made comparatively thin for purposes of economy,

and in such condition would not present much strength for supporting thestrain to which it would be subjected.

The inventi viding this on, therefore, comprises proface plate with abacking of stress-resisting material, which preferably would be somecementitious'material, such as Portland ce ment or the like, althoughthe invention is not limited to this particular material; alsoreinforcing this oementitious material, although the invention is notlimited to such reinforcement.

Preferably, also, the reinforcing will be y metal lathin some metallicmeans such as Wire fabric,

g or the like, comprehending the use of any usual and ordinary materialfor the purpose, and is not limited either to the metal lat-lung or tothe wire fabric, but includes all forms of reinforcement practiced, oras may In the drawings, face plate 10 is as now hereinafter .bepracticed. at Figures 1 and 2 the shown as provided with grooves 11 ofdovetailed formation. The use of such grooves is not e ent lnventlon,

ssential to the presfor at Figures 3 and 4 the face plate 12 is shown assubstantially plain at the back. At Figure shown with of the grooves tothe and showing 5 a face plate 13 is a plurality of grooves 14 inclinedto the longiutde of the article. When grooves are employed the relationarticle is immaterial, them 1n inclined position as at Figure 5 isintended as no limitation upon the invention.

The face provided cesses 16,

plate 15 shown at Figure .6 is

gered relation is not in any way a limitation of the tions orindentations, as

arrangement of such perforamay be employed.

At Figure 7 the face plate has similarly been numbe red 15 and theindentations 16 with a plurality of holes or reand the showing thereofin stagi face plate indicated, but this is also and fully as much asection of the face plate 13 shown at Fig ure 5. and the recesses shownat 16 in Figure 7 are the equivalent of grooves 14 shown at Figure 5.

In any of the forms, a backing is provided which is preferably made upof cementitious material 17 as indicated at Figures 1 to 7 inclusive,and also preferably a reinforcing is imbedded in, or employed inconjunction with this cementitious backing.

As shown at 18, this reinforcing indicates woven fabric, but ashereinbefore stated, the reinforcing by means of such fabric is nolimitation uponthe present invention and the showing of the reinforcingas such is intended only as illustrative and not in any way as alimltation.

When t e device is used with one of the members formed as a longitudinalcontinuation of another, an arrangement such as shown at Figure 8 isdesirable, wherein the 20 overlaps the backing 21 at one end, while thebacking 21 overlaps the face plate 20 at opposite end, so that the nextone employed may fit into this joint in the wellknown means of halvingjoints. I When the device is to be used with the units engaginglaterally, as for instance in clap board construction, the face plate 22as shown at 9 will overlap the backing 23 at one longitudinal edge,whilethe backing will overlap the face plate at the oppositelongitudinal edge, the provision of halved joints being the same asdescribed -in regard to Figure 8,-except that this halvin is availableat longitudinal edges instead 0 at the end. It is also obvious that bothof these may be combined so that the joints may be halved both at theends and at the sides, and Figures 8 and 9 are intended to convey thiscombination of joints.

The structure as an entirety will resemble a board or plank, and will beused in many cases'where boards or planks are ordinarily employed, andby reason of the impervious face plate made thin and therefore cheaplywith the reinforcing, may be economically employed, and will present aweather-proof or water-proof surface wherever so employed.

The term cementitious as used in the foregoing specification is intendedto broadly cover any material which may be used as the backing for theface plate applied thereto in a semi-liquid or plastic condition toharden in adhesion in any manner, as by drying, crystallizing or beingfired.

claim:

A material building unit, 'including an impervious face-plate having areinforced rigidified plastic backing secured thereto and and havingindentations therein filled with the plastlc'material of said backingplate, being substantially parallel to those of the facing plate, theWalls of said backing plate being substantially parallel to those of theface-plate, the members interlocking along their longitudinal edges andends by means of offset-portions which project along one side and edgeand inset from the opposite side and edge.

In testimony whereof, I afiix my signa ture.

VERNON J. MILLER. Witnesses MARY L. MOORE, O. ODoNooHUE.

